Focal plane shutter for camera and digital camera with focal plane shutter for camera

A focal plane shutter and camera technology, applied in the field of digital cameras, to achieve the effect of increasing the speed of continuous shooting

Active Publication Date: 2017-10-31
COPAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the focal plane shutter described in this patent document 2 is configured so that when the shutter release button is pressed for shooting, the first driving member for the front blade can be rotated when the tightening member is returned to its initial position. Not necessarily preferred for mass production

Method used

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  • Focal plane shutter for camera and digital camera with focal plane shutter for camera
  • Focal plane shutter for camera and digital camera with focal plane shutter for camera
  • Focal plane shutter for camera and digital camera with focal plane shutter for camera

Examples

Experimental program
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Embodiment

[0081] First, the main use figure 1 as well as figure 2 To illustrate the structure of the embodiment of the present invention, figure 1 It is a plan view of the state immediately after the exposure operation in the normally open method or the method using the electronic shutter of the imaging element instead of the front blade, figure 2 is true figure 1 A top view of an enlarged representation of approximately the left half of . In addition, in the description of this embodiment, it is explained on the premise that when the focal plane shutter of this embodiment is assembled on the camera, figure 1 The surface side (near side) is the subject side (shooting lens side), figure 1 The back side of is the imaging element side. However, it is well known that in the case of digital cameras, sometimes the figure 1 The surface side of the camera element side, with figure 1 The back side of is the subject side.

[0082] exist figure 1 In the shutter base plate 1, a r...

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PUM

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Abstract

Provided are a focal plane shutter and a camera having the focal plane shutter, capable of NOP / NCL switching, and capable of making shooting intervals shorter than before. The focal plane shutter is capable of NOP / NCL switching, and has: the driving unit (8, 9) for the front blade, in the NOP mode, when the tightening member (15) is at the tightening position, the front blade is withdrawn from the exposure opening, When the reset action is performed to the initial position, the front blade is made to cover the exposure opening. In the NCL mode, the front blade is made to cover the exposure opening during the period from when the tightening member is located at the tightening position to when the tightening member is reset to the initial position and the exposure operation starts; The first driving member (11) for the rear blade is locked by the locking member (17) during the tightening action, so that the rear blade is in the state of covering the exposure opening, and the locking of the locking member is released before reaching the tightening position. Timing, the rear blade is withdrawn from the exposure opening; the rear blade uses the second driving member (12) to rotate in the tightening direction by using the tightening action, and during the exposure action, the rear blade is rotated to the exposure action direction by the first driving member to come Make the rear blade cover the exposure opening.

Description

technical field [0001] The present invention relates to a focal plane shutter for a camera and a digital camera having the focal plane shutter for a camera. Background technique [0002] There are two types of shutter blades, a front blade and a rear blade, in a focal plane shutter for a digital camera. The structure of this focal plane shutter is substantially the same as the focal plane shutter used in cameras that used film in the past. The driving mechanism for the front blade is composed of the driving member for the front blade and the driving spring for the front blade. The driving member and the rear blade are composed of driving springs. The front blade and the rear blade are directly connected to the driving member for the front blade and the driving member for the rear blade respectively. The force of the driving spring rotates sequentially, so that the front blade opens the exposure opening, and the rear blade then closes the opening, thereby exposing the light-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B9/36
CPCG03B9/36G03B9/40G03B9/18G03B9/24H04N23/55G03B9/14G03B9/66G03B9/08
Inventor 西村光平
Owner COPAL CO LTD
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